Pith Number

pith:UGMEV64M

pith:2011:UGMEV64M7P6OIBBEJRS6XAL7GR

not attested not anchored not stored refs pending

Selection Effects on the Observed Redshift Dependence of GRB Jet Opening Angles

En-Wei Liang, Jun-Jie Wei, Rui-Jing Lu, Shu-Fu Qin

arxiv:1110.4943 v2 · 2011-10-22 · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UGMEV64M7P6OIBBEJRS6XAL7GR}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T04:04:29.731183Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1984afb8cfbfce404244c65eb817f34631c68aed6a26c754b55e6d18b84c613

Aliases

arxiv: 1110.4943 · arxiv_version: 1110.4943v2 · doi: 10.48550/arxiv.1110.4943 · pith_short_12: UGMEV64M7P6O · pith_short_16: UGMEV64M7P6OIBBE · pith_short_8: UGMEV64M

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/UGMEV64M7P6OIBBEJRS6XAL7GR \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: a1984afb8cfbfce404244c65eb817f34631c68aed6a26c754b55e6d18b84c613

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ffd601bbf739656fb4afbfeb0b78d73575f4dad50fcce4e70563828a50f36b57",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-10-22T04:05:22Z",
    "title_canon_sha256": "3d9017faf9cf4f5f22e2473000dda5b7532e102441790df82a28bc97a12d54d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.4943",
    "kind": "arxiv",
    "version": 2
  }
}